G01N 30/64
Electrical detectors
G01N30/64 (Electrical detectors) appears on 596 US grants and 485 published applications in this corpus.
Search patents in G01N- Granted patents
- 596
- Published applications
- 485
- Assignees
- 319
- Inventors
- 1,260
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 9 | 0 |
| 1981 | 11 | 0 |
| 1982 | 3 | 0 |
| 1983 | 5 | 0 |
| 1984 | 5 | 0 |
| 1985 | 14 | 0 |
| 1986 | 6 | 0 |
| 1987 | 10 | 0 |
| 1988 | 7 | 0 |
| 1989 | 13 | 0 |
| 1990 | 6 | 0 |
| 1991 | 12 | 0 |
| 1992 | 22 | 0 |
| 1993 | 8 | 0 |
| 1994 | 10 | 0 |
| 1995 | 13 | 0 |
| 1996 | 17 | 0 |
| 1997 | 9 | 0 |
| 1998 | 9 | 0 |
| 1999 | 5 | 0 |
| 2000 | 7 | 0 |
| 2001 | 10 | 2 |
| 2002 | 3 | 10 |
| 2003 | 7 | 11 |
| 2004 | 9 | 18 |
| 2005 | 6 | 19 |
| 2006 | 9 | 13 |
| 2007 | 4 | 11 |
| 2008 | 10 | 11 |
| 2009 | 8 | 10 |
| 2010 | 7 | 8 |
| 2011 | 2 | 15 |
| 2012 | 16 | 8 |
| 2013 | 14 | 10 |
| 2014 | 7 | 21 |
| 2015 | 17 | 36 |
| 2016 | 19 | 22 |
| 2017 | 20 | 18 |
| 2018 | 17 | 36 |
| 2019 | 26 | 31 |
| 2020 | 22 | 31 |
| 2021 | 28 | 27 |
| 2022 | 33 | 27 |
| 2023 | 23 | 21 |
| 2024 | 29 | 26 |
| 2025 | 18 | 21 |
| 2026 | 9 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01N 30/68Flame ionisation detectors138
- G01N 30/66Thermal conductivity detectors117
- G01N 2030/642Photoionisation detectorsIndexing code83
- G01N 2030/645Electrical conductivity detectorsIndexing code75
- G01N 30/70Electron capture detectors46
- G01N 2030/685Flame photometryIndexing code16
- G01N 2030/647Surface ionisationIndexing code13
Recent patents
- Analysis device and analysis method for quality index of natural gas product and application6 Oct 2026US 12,754,171 B2PetroChina Company Limited
- Electrical conductivity detector with phase difference correction22 Sep 2026US 12,742,753 B2Shimadzu Corporation
- Electron capture detector operating with a scintillation crystal18 Aug 2026US 12,710,404 B2Fox Robotics Laboratuvar Teknoloji Hizmetleri Sanayi Limited Sirketi
- Ion chromatography analysis system14 Jul 2026US 12,680,986 B2Shimadzu Corporation
- Cation chromatography using predicted elution buffer salt concentration7 Jul 2026US 12,674,784 B2Hoffmann-La Roche Inc.
- Propane-position carbon isotope testing method and testing system8 Oct 2026US 2026/0309682 A1China Petroleum & Chemical Corporation
- Flame-based detectors with ignition promoter port10 Sep 2026US 2026/0266777 A1Agilent Technologies, Inc.
- Metastable ionisation and emission detector, and related methods3 Sep 2026US 2026/0259183 A19518-1236 Quebec Inc.
- Methods of performing high-flow chromatography under adiabatic conditions3 Sep 2026US 2026/0259184 A1Waters Technologies Corporation
- Flow-restricted pneumatic modulator for a multidimensional gas chromatography system27 Aug 2026US 2026/0251624 A1The Regents of the University of Michigan
Most cited
By later US patents
- Electrochemical detector system425US 4,059,406 AE D T Supplies Limited · 1977
- Sensor devices234US 5,194,133 AGeneral Electric Company · 1993
- Method and apparatus for capacitive deionization, electrochemical purification, and regeneration of electrodes157US 5,425,858 AThe Regents of the University of California · 1995
- Liquid chromatograph144US 5,132,012 AHitachi, Ltd. · 1992
- Electrical detector for micro-analysis systems140US 6,169,394 AUniversity of Utah Research Foundation · 2001